# R7RS Libraries - Cyclone runtime - [`scheme base`](api/scheme/base.md) - [`scheme case-lambda`](api/scheme/case-lambda.md) - [`scheme char`](api/scheme/char.md) - [`scheme cxr`](api/scheme/cxr.md) - [`scheme eval`](api/scheme/eval.md) - [`scheme file`](api/scheme/file.md) - [`scheme inexact`](api/scheme/inexact.md) - [`scheme lazy`](api/scheme/lazy.md) - [`scheme load`](api/scheme/load.md) - [`scheme process-context`](api/scheme/process-context.md) - [`scheme read`](api/scheme/read.md) - [`scheme time`](api/scheme/time.md) - [`scheme write`](api/scheme/write.md) # SRFI Library Support Cyclone supports the following [Scheme Requests for Implementation (SRFI)](http://srfi.schemers.org/) libraries: - [`srfi 1`](api/srfi/1.md) - [List Library](http://srfi.schemers.org/srfi-1/srfi-1.html) - [`srfi 2`](api/srfi/2.md) - [`and-let*`](http://srfi.schemers.org/srfi-2/srfi-2.html) - [`srfi 8`](api/srfi/8.md) - [`receive`: Binding to multiple values](http://srfi.schemers.org/srfi-8/srfi-8.html) - Included as part of `scheme base`. - [`srfi 18`](api/srfi/18.md) - [Multithreading support](http://srfi.schemers.org/srfi-18/srfi-18.html) - [`srfi 27`](api/srfi/27.md) - [Sources of random bits](http://srfi.schemers.org/srfi-27/srfi-27.html) - [`srfi 69`](api/srfi/69.md) - [Basic hash tables](http://srfi.schemers.org/srfi-69/srfi-69.html) # Cyclone-specific These libraries are used by the Cyclone compiler itself, and are subject to change: - `scheme cyclone cgen` - `scheme cyclone common` - `scheme cyclone libraries` - `scheme cyclone macros` - `scheme cyclone transforms` - `scheme cyclone util`